42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
|
|
// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
|
|
// Hinnant & John Maddock 2000.
|
|
// Use, modification and distribution are subject to the Boost Software License,
|
|
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt).
|
|
//
|
|
// See http://www.boost.org/libs/type_traits for most recent version including documentation.
|
|
|
|
|
|
#ifndef BOOST_TT_ADD_CV_HPP_INCLUDED
|
|
#define BOOST_TT_ADD_CV_HPP_INCLUDED
|
|
|
|
#include <boost/config.hpp>
|
|
|
|
namespace boost {
|
|
|
|
// * convert a type T to a const volatile type - add_cv<T>
|
|
// this is not required since the result is always
|
|
// the same as "T const volatile", but it does suppress warnings
|
|
// from some compilers:
|
|
|
|
#if defined(BOOST_MSVC)
|
|
// This bogus warning will appear when add_volatile is applied to a
|
|
// const volatile reference because we can't detect const volatile
|
|
// references with MSVC6.
|
|
# pragma warning(push)
|
|
# pragma warning(disable:4181) // warning C4181: qualifier applied to reference type ignored
|
|
#endif
|
|
|
|
template <class T> struct add_cv{ typedef T const volatile type; };
|
|
|
|
#if defined(BOOST_MSVC)
|
|
# pragma warning(pop)
|
|
#endif
|
|
|
|
template <class T> struct add_cv<T&>{ typedef T& type; };
|
|
|
|
} // namespace boost
|
|
|
|
#endif // BOOST_TT_ADD_CV_HPP_INCLUDED
|